Derivative Instruments - Schedule of Fair Values of Outstanding Derivative Instruments (Details) - USD ($) $ in Millions	Apr. 30, 2026	Jan. 31, 2026
Derivatives, Fair Value [Line Items]
Derivative assets:	$ 27	$ 21
Derivative liabilities:	128	148
Non-designated hedges \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets:	5	4
Non-designated hedges \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities:	14	12
Cash flow hedges \| Cash flow hedges \| Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets:	13	15
Cash flow hedges \| Cash flow hedges \| Other assets
Derivatives, Fair Value [Line Items]
Derivative assets:	9	2
Cash flow hedges \| Cash flow hedges \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities:	65	71
Cash flow hedges \| Cash flow hedges \| Other liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities:	$ 49	$ 65

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Reference 2: http://www.xbrl.org/2003/role/exampleRef
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